OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b78fde-0): addr:1e:a2:a2:c8:8f:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:28:4d:ea:7b:2c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
